If about 20% of British children are deficient in vitamin and doctors test a group of elementary school children, the probability that the first vitamin d-deficient child is the 8th one tested is 4.19% determined using geometric distribution formula.
In probability and statistics, geometric distribution refers to the probability that first success would occurs after n number of trials and is given by:
P(X)=q^(x-1)p
Where p is the probability of success and q is (1-p)
In this case,
p=probability of children deficient in vitamin= 0.2
q= probability of children not deficient in vitamin= 0.8
Hence,
P(8)=0.8^(8-1)*0.2= 0.0419
Hence, the probability that 8th child is deficient is 4.19%
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There are 16 different outcomes with the equation to solve for it being 4^x=total outcomes with x being times the sniper is spun.
Answer:
$13
Step-by-step explanation:
8x1=$8 next 4x2=$8 than $8-$3=$5 into $8+$5=$13
Answer:
3) left
Step-by-step explanation:
